12715280

素因数分解:

$2^4\times 5^1\times {\mathrm{158941}}^1$

素因数の和:158954

約数の個数: 20

約数和(自身を含む): 29563212

約数和(自身を除く): 16847932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 158941, 317882, 635764, 794705, 1271528, 1589410, 2543056, 3178820, 6357640, 12715280]

約数ペア:

[(1, 12715280), (2, 6357640), (4, 3178820), (5, 2543056), (8, 1589410), (10, 1271528), (16, 794705), (20, 635764), (40, 317882), (80, 158941)]